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QuantumDevil
QuantumDevil is offline
#6
Dec24-07, 06:15 PM
P: 29
Quote Quote by masudr View Post
Feynman diagrams are literally terms in an expansion.

It is misleading to think these are diagrams of actually what is happening.
Wick theorem used for "external connection" (as shown in Peskin &Schroeder books) shows that your interpretation is correct.